deps: Update dependency @azure-tools/typespec-client-generator-core to v0.68.2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@azure-tools/typespec-client-generator-core (source)	0.68.1 → 0.68.2

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Release Notes

Azure/typespec-azure (@​azure-tools/typespec-client-generator-core)

v0.68.2

Compare Source

Features

• #​4480 Extend isExactName to additional SDK types whose names can be changed by @clientName: SdkClientType, SdkServiceMethodBase (and its derived method kinds), and SdkEnumValueType. Also fixed SdkClientType.name to strip the internal exact() marker.

Bug Fixes

• #​4477 Fix reorderParameters, addParameter, removeParameter, and replaceParameter so that decorators copied to cloned model properties and cloned operations are applied (by calling finishType after cloning). This fixes scenarios such as parameters with @typeChangedFrom under a @versioned service.
• #​4487 Fix example value matching for decimal and decimal128 typed properties. JSON number values in example files are now correctly recognized as matching decimal / decimal128 typed properties.
• #​4484 Fix example values being dropped on subtypes added via @hierarchyBuilding by propagating serialization options from the nearest ancestor to the newly added subtype

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